非線性光子晶體全光開關(guān)及其在光邏輯運(yùn)算中的應(yīng)用.pdf

1、南京郵電大學(xué)碩士學(xué)位論文非線性光子晶體全光開關(guān)及其在光邏輯運(yùn)算中的應(yīng)用姓名：王國棟申請學(xué)位級別：碩士專業(yè)：光學(xué)工程指導(dǎo)教師：陳鶴鳴20090401南京郵電大學(xué)碩士研究生學(xué)位論文AbstractAbstractWiththerapidincreaseofthedemandintheamountofinformation，networkcommunicationsandinformationcomputingarefacedwithnewc

2、hallenges，whichpromotethedevelopmentoflightwavetechnologytosomeextentTheopticalinformationprocessingtechnology，includingopticalimageprocessing，opticalinformationstorage，opticalcomputingandSOon，isstudieddeeperanddeeperPho

3、tonopticalswitch，whichisthebasiccomponentofopticalinformationprocessing，hasbecomethekeydevicesofopticalnetworkandthecurrentdigitalopticalcomputingWithastrongabilitytocontrollight，thephotoniccrystalhasbeenconsideredtobeth

4、efutureofthesemiconductorsItCanbeusedtocreatenewhighperformancephotonieswitchingdeviceswhichcannotmadebeforeTheresearchesonopticalswitchwillbeabletofurtherpromotetheindustryofphotoniccrystalintheallopticalintegration，opt

5、icalcommunicationandopticalinformationprocessingThispaperistodesignhighperformancephotonieswitchbyintroducingdefectsinthephotoniecrystalTheFDTDisusedtodocalculationandsimulationUndertheconditionofintroducingbothpointandl

6、inedefectsinthephotoniccrystal，weobtainthetransmissionspectrumanddefectmodedistributionAfterthat，withtheintroductionofnonlinearphotoniccrystalcomposedbythird—ordernonlinearopticalmaterials，weanalyzethedefectmodetransferp

7、rincipleofthenonlinearphotoniecrystalallopticalswitching，andfinallydesignanewtypeofnonlinearphotonlccrystalall—opticalswitch，whosesignalwavelengthandcontrolwavelengthareallat1550nmThroughsimulation，weanalyzethetransmissi

8、onspectrum，extinctionratio，switchingthresholdandresponsetimeoftheopticalswitch，andalsocomparetheswitchingperformanceofopticalswitchinthetractionzoneandnotractionzoneareaTheresultsshowthattheperformanceoftheallopticalswit

9、chingisgreatlyimprovedwiththeintroductionoftractionareaThetransmissionrateishi曲whenlightison，whichisaboutO95Whenlightisoffthelowrateoftransmissionisabout4x10一，andtheopticalswitchingextinctionratioislarge，about34dB，theswi

10、tchingthresholdislow，andtheresponsetimeisquick，closeto35picosecondsBecauseofthewavelengthofcontrollightandsignallightisthesame，thisnonlinearphotoniecrystalall—opticalswitchhasanimportantacademicsignificancetolargescalein